Agenda - Council - 05/23/2000 - Laserfiche WebLink

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Mallard Ponds Review Letter May 18, 2000 Page 2 of 4 emergency vehicular access. No parking signs should also be erected along the private roads. Staff also requests that the cul-de-sa6 be re-named to 140t~ Avenue NW, the northerly private street be re-named to 140t~ Lane NW and the southerly private road be re-named to 140~' Avenue NW. Traffic Generation Analysis: The latest revision of a traffic analysis was prepared by Mr. James Johnson of Hakanson, Anderson and Associates, dated April 4, 2000. Since that time, the proposed apartment units have been converted to 36 townhome units. The traffic generation estimates have been revised downward in view of this change. The analysis would now show 756 daily trips (down from 1606 in the April 4, 2000 analysis, with 59 additional peak morning hour trips (down from 125) and 77 new peak evening hour trips (down from 157). Street Lights: The Developer should make arrangements with Connexus to install the streetlights and send the utility hills to the homeowners association. The City Engineer should be provided with a copy of the street light layout for incorporation into the City street light map. Grading and Drainaee: The grading and drainage plan has been presented on sheet 2 of 3 prepared by John Oliver and Associates. It is proposed that the townhome development be graded such that drainage transmits from the center of the site to the east and west. Storm sewers are provided on the east and west sides of the development conveying runoff to two storm water detention ponds located along the DNR Protected Wetland. The southerly pond drains to the northerly pond which outlets into the wetland. There is an outlet from the DNR protected wetland, which discharges to the Rum River. This plan is generally acceptable with the following observations. 1. A permit from the Lower Rum River Water Management Organization needs to be obtained. Calculations will need to be submitted verifying the adequacy of the ponding for water quality treatment. 2. Greater detail needs to be provided for the grading between the northern property line and lots 10 through 16. It is my recommendation that storm sewer be provided at the back of these lots to avoid the need for draining between the residential units. There is minimal grade in this .... To accommodate drainage. 3. The storm sewer system shall be a private system maintained by the appropriate owner associations.